[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-380783-105":59,"doc-detail-380783-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","oncocytic-carcinoma-of-parotid-gland-case-report","Oncocytic carcinoma of parotid gland - Case Report","","Oncocytic carcinoma represents about 0.5% of epithelial salivary gland malignancies and is a rare parotid cancer. Clinical presentation may include cheek discomfort and swelling, with occasional facial nerve involvement causing unilateral facial paralysis; surgery is commonly preferred. This case report describes an 84-year-old man with a right parotid oncocytic carcinoma evaluated by Doppler ultrasound and contrast-enhanced CT, showing a heterogeneous, poorly defined, hypoechoic enhancing mass with adjacent lymph-node involvement, supporting differentiation of malignant disease from benign tumors.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/oncocytic-carcinoma-of-parotid-gland-case-report/380783/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/oncocytic-carcinoma-of-parotid-gland-case-report/380783.png","ImageObject",300,407,{"name":92,"@type":93},"PakDamar76","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-29","2026-09-24",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What are the typical clinical signs of oncocytic carcinoma of the parotid gland in this report?","Question",{"text":113,"@type":114},"The patient presented with right cheek swelling and pain for about three months. Facial asymmetry and right-sided facial edema were noted, and ipsilateral peripheral facial nerve palsy was discovered, with cervical lymph nodes also palpable.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"What imaging features were observed on Doppler ultrasonography?",{"text":118,"@type":114},"Doppler ultrasonography showed a heterogeneous, hypoechogenic, poorly defined lesion with modest vascular proliferation in the right parotid gland.",{"name":120,"@type":111,"acceptedAnswer":121},"How was the diagnosis confirmed after treatment?",{"text":122,"@type":114},"The tumor was found to completely engulf the right facial nerve and was removed during right complete parotidectomy. Histopathologic analysis identified oncocytic carcinoma, and metastatic involvement was confirmed in internal jugular and inferior periparotid lymph nodes.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},380783,1790790414,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":19,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":52},962090893057,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Radiology Ca s e Reports 18 (2023) 1244 – 1247  \nAvailable online [at](at www.sciencedirect.com)[ www.sciencedirect.com](at www.sciencedirect.com)  \njournal [homepage:](homepage: www.elsevier.com/locate/radcr)[ www.elsevier.com/locate/radcr](homepage: www.elsevier.com/locate/radcr)  \n| Case Report\u003Cbr>Oncocytic carcinoma of parotid gland✩\u003Cbr>Ho Xuan Tuan, MD, PhDa,1, Cao Minh Tri, MDb, Phan-Thi Thuy Duong, MDb, Nguyen Minh Duc, MDb,c,1,∗\u003Cbr>a Department of Medical Imaging, Da Nang University of Medical Technology and Pharmacy, Da Nang, Vietnam b Department of Radiology, Ho Chi Minh City Oncology Hospital, Ho Chi Minh City, Vietnam\u003Cbr>c Department of Radiology, Pham Ngoc Thach University of Medicine, 2 Duong Quang Trung Ward 12 District 10, Ho Chi Minh City, Vietnam |  |  |\n| --- | --- | --- |\n| a r t i c l e i n f o |  | a b s t r a c t |\n| Article history:\u003Cbr>Received 11 December 2022 Revised 21 December 2022 Accepted 27 December 2022 |  | Of 0.5% all epithelial salivary gland malignancies are oncocytic cancers, a rare kind of parotid gland cancer. Clinical signs include discomfort and swelling in the cheek region, and the facial nerve is occasionally affected, leading to unilateral facial paralysis. Currently, surgery is the preferred choice of therapy. In this paper, we aimed to provide a case of an 84-year-old male who had an oncocytic carcinoma in the right parotid gland. A heterogeneous, poorly defined hypoechogenic lesion with minor vascular proliferation was seen by Doppler ultrasonography in the superficial lobe of the right parotid gland. On a computed tomography (CT) with contrast agent, an ill-defined mass filling the right parotid gland was evident. With the aid of the CT results of a heterogeneous enhancing mass with poorly defined boundary and expansion of adjacent lymph nodes, it may be able to differentiate between malignant lesions and benign parotid tumors.\u003Cbr>© 2022 The Authors. Published by Elsevier Inc. on behalf of University of Washington.\u003Cbr>This is an open access article under the CC BY-NC-ND license\u003Cbr>([http://creativecommons.org/licenses/by-nc-nd/4.0/](http://creativecommons.org/licenses/by-nc-nd/4.0/)) |\n| Keywords:\u003Cbr>Parotid gland Oncocytic carcinoma Ultrasound Computed tomography |  |  |\n\nIntroduction  \nLess than 5% of head and neck neoplasms are salivary gland neoplasms [1] . The parotid gland was the most typical location [2] . Oncocytic carcinoma, which makes up just 0.5% of all epithelial salivary gland malignancies despite the fact that the bulk of tumors are of epithelial origin, is incredibly uncommon [3] . Based on capsular, vascular, or brain invasion with or without signs of metastasis, the definitive criteria for malignancy are established. For oncocytic carcinomas,  \nlike the majority of parotid gland carcinomas, surgery is the favored option of treatment. In this article, we aimed to introduce a rare instance of right parotid gland oncocytic carcinoma in this paper.  \nCase description  \nAn 84-year-old Vietnamese male’s right cheek swelled and hurt for almost 3 months was admitted to our hospital. Phys-  \n✩ Competing Interests: The authors have no conflicts of interest to declare.  \n∗ Corresponding author.  \nE-mail [address:](address: bsnguyenminhduc@pnt.edu.vn)[ bsnguyenminhduc@pnt.edu.vn](address: bsnguyenminhduc@pnt.edu.vn) (N.M. Duc).  \n1 These authors contributed equally to this article as co-first authors.  \n[https://doi.org/10.1016/j.radcr.2022.12.058](https://doi.org/10.1016/j.radcr.2022.12.058)  \n1930-0433/© 2022 The Authors. Published by Elsevier Inc. on behalf of University of Washington. This is an open access article under the CC BY-NC-ND license ([http://creativecommons.org/licenses/by-nc-nd/4.0/](http://creativecommons.org/licenses/by-nc-nd/4.0/))  \nFig. 1 – A hypoechoic mass with an ill-defined border was seen on color-Doppler mode ultrasonography in the right parotid gland (arrow).  \nFig. 2 – Axial CT image without contrast agent (A), axial (B), and coronal (C) CT im","cbCaimSsEiuFbO0D","https://ap.wps.com/l/cbCaimSsEiuFbO0D","pdf",715239,"English","# Case description\n## Imaging findings\n## Surgical and histopathologic findings\n# Discussion\n## Anatomy and clinical context","[{\"question\":\"What are the typical clinical signs of oncocytic carcinoma of the parotid gland in this report?\",\"answer\":\"The patient presented with right cheek swelling and pain for about three months. Facial asymmetry and right-sided facial edema were noted, and ipsilateral peripheral facial nerve palsy was discovered, with cervical lymph nodes also palpable.\"},{\"question\":\"What imaging features were observed on Doppler ultrasonography?\",\"answer\":\"Doppler ultrasonography showed a heterogeneous, hypoechogenic, poorly defined lesion with modest vascular proliferation in the right parotid gland.\"},{\"question\":\"How was the diagnosis confirmed after treatment?\",\"answer\":\"The tumor was found to completely engulf the right facial nerve and was removed during right complete parotidectomy. Histopathologic analysis identified oncocytic carcinoma, and metastatic involvement was confirmed in internal jugular and inferior periparotid lymph nodes.\"}]","Oncocytic carcinoma of parotid gland - Case Report | PDF",1790242092]